| 发明名称 |
PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC DEVICE |
| 摘要 |
Disclosed is a piezoelectric ceramic composition mainly composed of a bismuth lamellar compound containing Na, Bi, Co and an Ln (lanthanoid). Also disclosed is a piezoelectric ceramic composition mainly composed of a compound containing Na, Bi, Ti, Co and an Ln (lanthanoid) and having a crystal phase represented by Na<SUB>0.5</SUB>Bi<SUB>4.5</SUB>Ti<SUB>4</SUB>O<SUB>15</SUB>. The piezoelectric ceramic compositions are characterized in that the atomic ratio satisfies the following relation: 0 < Ln/(Na + Bi + Ln) = 0.04. |
| 申请公布号 |
WO2008130011(A1) |
申请公布日期 |
2008.10.30 |
| 申请号 |
WO2008JP57536 |
申请日期 |
2008.04.17 |
| 申请人 |
NGK SPARK PLUG CO., LTD.;YAMAZAKI, MASATO;ITO, KOHEI;YAMAGIWA, KATSUYA;MITSUOKA, TAKESHI |
发明人 |
YAMAZAKI, MASATO;ITO, KOHEI;YAMAGIWA, KATSUYA;MITSUOKA, TAKESHI |
| 分类号 |
C04B35/46;H01L41/09;H01L41/187;H01L41/24;H03H9/17 |
主分类号 |
C04B35/46 |
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